# D vs CombiApp

The clearest difference is review sentiment: D at 38% against CombiApp's 25%. D also leads on iOS requirement (10.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

D ships an update every 5 weeks, CombiApp every 2 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | D | CombiApp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **37.5% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 23 MB | 85 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SECUREMME SRL](https://appshunter.io/developer/1076281466) | [Combivox Srl Unipersonale](https://appshunter.io/developer/1203005996) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-smart/id1076281467)

Transform your existing European cylinder locks into smart locks with this device. Control your doors remotely via smartphone, manage access permissions, and create virtual keys. Enjoy convenient and secure access control without needing to replace your current lock.

**Highlights:** Automate European cylinder locks, Smartphone control via Bluetooth, Virtual key creation, Timed access management, User access control, Multiple access methods (transponder, keypad)

**Features:** macOS Compatibility

**In-app purchases:** none


### CombiApp

[App page](https://appshunter.io/ios/app/combiapp/id1535981570)

This virtual assistant provides security sector professionals with tools for system monitoring, catalog access, and warranty extensions. It offers real-time notifications for system faults and updates on new products and offers.

**Highlights:** Real-time system monitoring and fault notifications, Access to updated product catalog and price lists, View brochures and video presentations, Access device manuals and video tutorials, Activate 7-year warranty extensions, Create and store client quotes, Receive Combivox news and offers via push notifications

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is D free?

D is free to download, with no in-app purchases.

### Is CombiApp free?

CombiApp is free to download, with no in-app purchases.

### Do D or CombiApp have ads?

Neither D nor CombiApp shows ads.

### Which is updated more often, D or CombiApp?

D ships an update every 5 weeks, and CombiApp every 2 months. Most recently, D was updated on October 7, 2026 and CombiApp on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*